Superior Attachment Lateral third of clavicle Acromion Process Scapular spine Inferior Attachment Deltoid Tuberosity (on the humerus)

Lecture 3 Anatomy Flashcards by Sophia Khan

Pectoral Girdle

anything that connects the appendicular skeleton to the axial skeleton

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Subclavian Artery consist of what arteries? Remember the mnemonic for this.

VIT C D

Vertebral Artery

Internal Thoracic Artery

Thyrocervical Trunk

Suprascapular Artery
Transverse Cervical Artery

Costocervical Trunk Artery

Dorsal Scapular Artery

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The Vertebral Artery passes through the?

Transverse Foramen of Cervical Vertebrae and the suboccipital triangle

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Trapezius is supplied by?

Dorsal Scapular Artery
- Subclavian artery
Transverse cervical Artery
- Subclavian artery
  - thyrocervical trunk

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List Axillary Artery and it’s branches.. remember the mnemonic.

Screw, The Lawyer, Save A Patient

Superior Thoracic Artery
Thoracoacromial Artery
Lateral Thoracic Artery
Subscapular Artery
- Thoracodorsal artery
Anterior Circumflex Humeral Artery
Posterior Circumflex Humeral Artery

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Latissimus Dorsi is supplied by what artery?

Thoracodorsal artery
- off of the Br. Subscapular Artery of the Axillary Artery

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Innervation to muscles of the shoulder are supplied by what nerves?

Brachial Plexus

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Peripheral Nerves have what amount of spinal levels supplying them?

SEVERAL SPINAL NERVES

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Dermatomes have how many spinal levels?

ONLY one!

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Pectoralis Major Proximal attachments?

Sternum
medial third of clavicle
costal cartilages of ribs 2-6.

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Pectoralis Major Distal Attachments?

Lateral ridge of intertubercular groove
Lateral lip of the intertubercular groove (bicipital groove)

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Pectoralis major artery supply?

Arteries Pectoral Artery
- Br. of Thoracoacromial Artery of Axillary Artery

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Pectoralis major nerve supply?

Medial and Lateral Pectoral Nerves
- (Brs. Medial and lateral cords of BP)

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Latissimus Dorsi attaches to the ?? lip of the intertubercular/bicipital groove.

MEDIAL lip

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Deltoid Attachments

Superior Attachment
- Lateral third of clavicle
- Acromion Process
- Scapular spine
Inferior Attachment
- Deltoid Tuberosity (on the humerus)

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Deltoid does how much of abduction?

90%

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What arteries supplies the Deltoid?

Deltoid Branches of Thoracoacromial Artery
Post. Humeral Circumflex Artery

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What nerve supplies the Deltoid?

Axillary Nerve
- Br. of Posterior Cord of BP

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What vein is the main venous drainages in the upper limb? Where exactly is it located? and where does it dump into?

Celphalic Vein runs through the Deltopectoral Groove and dumps into the Subclavian Vein

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Where is the Subclavius located?

Subclavius runs just underneath the clavicle

helps stabilize the joint
- If you shatter your clavicle, the bones will most likely puncture the subclavius instead of the axillary artery.
- It is more of a protective muscle!

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1st part of the Axillary Artery is?

Superior Thoracic Artery

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What is 2nd of the axillary artery?

Thoracoacromial artery
- Pectoral Branch
- Clavicular Branch
- Acromial Branch
- Deltoid Branch
Lateral Thoracic artery

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What is the 3rd parth of the Axillary Artery?

Subscapular Artery
- Thoracodorsal Artery
- Circumflex Scapular Artery
Anterior circumflex Humeral
Posterior Circumflex Humeral

” Save A Patient “

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All of these are a part of the Axillary artery except?

A. Posterior Circumflex Humeral Artery

B. Anterior Circumflex Humeral Artery

C. Subscapular Artery

D. Lateral Thoracic Artery

E. Thoracoacromial Artery

F. Superior Thoracic Artery

G. None of the above

None of the above

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Dorsal Scapular Artery supplies which muscle(s)? A. Trapezius B. Rhomboid Major C. Levator Scapulae D. Rhomboid Minor E. B, C and D F. All of the Above

Trapezius Rhomboid Major Rhomboid Minor Levator Scapulae are all supplied by **Dorsal Scapular Artery**

Which muscle attaches to a portion of the bicipital groove? A. Pectoralis Major B. Pectoralis Minor C. Latissimus Dorsi D. A and C E. All of the above

A. Pectoralis Major (LATERAL Lip) C. Latissimus Dorsi (MEDIAL Lip)

Pectoralis Minor Attachments, arteries, nerve?

Medial attachment: Surfaces of ribs 3-5 Lateral attachment: **Corocoid Process** Arteries : **Pectoral Branches of Thoracoacromial Artery Br. of Axillary Artery** Nerve: **ONLY Medial Pectoral Nerve** Br. of Medial Cord of BP

Serratus Anterior attachments, arteries, innervation?

Anterior Attachment: Lateral surfaces of Ribs 1-8 Posterior Attachment: Vertebral (medial) border of scapular LAteral Thoracic Artery * Br. of Axillary Artery Innervation * LoNg Thoracic Nerve

If you severe the medial pectoral nerve, which muscle(s) are affected? A. Pectoralis Minor B. Subclavius C. Pectoralis Major D. A and C E.All of the above

Both Pec Major and Minor.

What is the Quadrangular space?

Laterally: Shaft of the Humerus Medially: Long head of the Triceps Brachii Superiorly: Teres Minor Muscle Inferiorly: Teres Major Muscle

Is the Teres Major a Rotator Cuff muscle?

NO!

What is apart of the rotator cuff muscles?

Posterior Scapula * Supraspinatus * Infraspinatus * Teres Minor * Subscapularis

Supraspinatius and Infraspinatius innervation? Artery? What are these muscles apart of?

* Suprascapular Artery * Suprascpulaar Nerve Rotator Cuff

Teres minor innervation?

* Axillary Nerve

What is Teres Majors is innervated by?

Lower Subscapular Nerve

Where is the Suprascapular Nerve and Suprascapular Artery located in reference to the Superior Transverse Scapular Ligament?

Nerve is Under and Artery is Above the Superior Transverse Scapular Ligament.

Subscapularis is innervated by?

Subscapular Nerve

Radial Nerve and The Deep Brachial Artery run through the?

Spiral Groove of the Deltoid

Which of the following is a branch off of the Thyrocervical Trunk that supplies the Trapezius? A. Suprascapular Artery B. Subscapular Artery C. Transverse Cervical Artery D. Internal Thoracic Artery

C. Transverse Cervical Artery

Supraspinatus does how much of abduction percent wise?

10%

What is the most commonly torn rotator cuff muscle? and why?

The Supraspinatus due to its location and lack of vasuclarity.

Label these, and what muscle is it associated with?

* Transverse Cervical Artery supplies the Trapezius * Suprascapular supplies the supraspinatious and infraspinatious * All of these come off the thyrocervical trunk off of the Subclavian Artery.

Label the arteries. And what muscles do these supply?

* Thoracormoial Artery supplies comes off the Axillary Artery and it supplies the pectorial ,deltoid, clavicle, acromial branch. * Lateral Thoracic Artery supplies the serratus anterior and it comes off the Axillary Artery.

Label the arteries

Subscapular Artery and the anterior, posterior circumflex artery.

Thyrocervical trunk it comes off the the subclavian artery and it turn into two arteries. The suprascapular artery and the transverse cervical artery.

What muscle is this? What is its inervations and arterial supply? attachments?

Pectoralis minor, ONLY median nerve, and the pectorial branches off of the thoracormial artery of the axillary artery. Attachments: Medial: Surfaces of ribs 3-5. Lateral: **Corocoid Process.**

What vein is this? what does it do? and where is it located?

Cephalic Vein. runs through the Deltopectoral groove One of the main venous drainages in the upper limbs. Dumps into the subclavian vein

What is this vein and what does it do?

Subclavian vein, and the cephalic vein dumps its stuff into it.

Brachial plexus wraps around what artery??

Axillary artery

What is this? What are the boundaries? What runs through?

Quadrangular space. ## Footnote lLaterally: Shaft of the Humerus lMedially: Long head of the Triceps Brachii lSuperiorly: teres minor Muscle lInferiorly: Teres Major Muscle Axillary nerve and the PHC run through it.

Label these major arteries

What muscle is this? what is its innervations and arterial supply?

Serratus anterior. Long Thoracic nerve and The Lateral Thoracic Artery off of the Axillary Artery

What is this? and what muscles does it have? what are each of the muscles innervations and arterial supply?

Rotator Cuff : Supraspinatious, infraspinatious, Teres Minor, and Subscapularis. Suprascapular Artery and nerve for Supraspinatious and infraspinatious. Teres minor has Subscapular artery and Posterior Cicumflex Artery off of the Axillary Artery. Nerve : Axillary nerve. Subscapularis as Subscapular Artery and Subscapularis Nerve.